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/*
Copyright (C) 2023 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "kdm_util.h"
#include "screen.h"
#include <dcp/certificate.h>
#include <boost/optional.hpp>
#include "i18n.h"
using std::list;
using std::pair;
using std::shared_ptr;
using std::string;
using boost::optional;
KDMCertificatePeriod
check_kdm_and_certificate_validity_periods(dcp::Certificate const& recipient, dcp::LocalTime kdm_from, dcp::LocalTime kdm_to)
{
auto overlaps = [](dcp::LocalTime from_a, dcp::LocalTime to_a, dcp::LocalTime from_b, dcp::LocalTime to_b) {
return std::max(from_a, from_b) < std::min(to_a, to_b);
};
auto contains = [](dcp::LocalTime bigger_from, dcp::LocalTime bigger_to, dcp::LocalTime smaller_from, dcp::LocalTime smaller_to) {
return bigger_from <= smaller_from && bigger_to >= smaller_to;
};
if (contains(recipient.not_before(), recipient.not_after(), kdm_from, kdm_to)) {
return KDMCertificatePeriod::KDM_WITHIN_CERTIFICATE;
}
if (overlaps(recipient.not_before(), recipient.not_after(), kdm_from, kdm_to)) {
/* The KDM overlaps the certificate validity: maybe not the end of the world */
return KDMCertificatePeriod::KDM_OVERLAPS_CERTIFICATE;
} else {
/* The KDM validity is totally outside the certificate validity: bad news */
return KDMCertificatePeriod::KDM_OUTSIDE_CERTIFICATE;
}
}
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